A Parallel Compact Multi-dimensional Numerical Algorithm with Aeroacoustics Applications PDF Download
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Author: Institute for Computer Applications in Science and Engineering. (ICASE)
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
Author: Institute for Computer Applications in Science and Engineering. (ICASE)
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 182
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Author: D. Keyes
Publisher: Elsevier
ISBN: 008053838X
Category : Mathematics
Languages : en
Pages : 477
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Book Description
Contributed presentations were given by over 50 researchers representing the state of parallel CFD art and architecture from Asia, Europe, and North America. Major developments at the 1999 meeting were: (1) the effective use of as many as 2048 processors in implicit computations in CFD, (2) the acceptance that parallelism is now the 'easy part' of large-scale CFD compared to the difficulty of getting good per-node performance on the latest fast-clocked commodity processors with cache-based memory systems, (3) favorable prospects for Lattice-Boltzmann computations in CFD (especially for problems that Eulerian and even Lagrangian techniques do not handle well, such as two-phase flows and flows with exceedingly multiple-connected demains with a lot of holes in them, but even for conventional flows already handled well with the continuum-based approaches of PDEs), and (4) the nascent integration of optimization and very large-scale CFD. Further details of Parallel CFD'99, as well as other conferences in this series, are available at http://www.parcfd.org
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Category : Government publications
Languages : en
Pages : 1024
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Author:
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Category : Aeronautics
Languages : en
Pages : 1032
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 548
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 456
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Author: Michael Douglas White
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Author: Alex Povitsky
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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The propagation of acoustic waves originating from cylindrical and spherical pulses, in a non-uniform mean flow, and in the presence of a reflecting wall is investigated by Hardin and Pope approach using compact approximation of spatial derivatives. The 2-D and 3-D stagnation flows and a flow around a cylinder are taken as prototypes of real world flows with strong gradients of mean pressure and velocity. The intensity and directivity of acoustic wave patterns appear to be quite different from the benchmark solutions obtained in a static environment for the same geometry. The physical reasons for amplification and weakening of sound are discussed in terms of dynamics of wave profile and redistribution of acoustic energy and its potential and kinetic components. For an acoustic wave in the flow around a cylinder, the observed mean acoustic pressure is approximately doubled (upstream pulse position) and halved (downstream pulse position) in comparison with the sound propagation in static ambient conditions.
Author:
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Category : Fluid dynamics
Languages : en
Pages : 768
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